One time-travelling bit is as good as logarithmically many

Ryan O'Donnell, A. C. Cem Say. One time-travelling bit is as good as logarithmically many. Electronic Colloquium on Computational Complexity (ECCC), 21:91, 2014. [doi]

@article{ODonnellS14,
  title = {One time-travelling bit is as good as logarithmically many},
  author = {Ryan O'Donnell and A. C. Cem Say},
  year = {2014},
  url = {http://eccc.hpi-web.de/report/2014/091},
  researchr = {https://researchr.org/publication/ODonnellS14},
  cites = {0},
  citedby = {0},
  journal = {Electronic Colloquium on Computational Complexity (ECCC)},
  volume = {21},
  pages = {91},
}